The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2012
Filed:
Feb. 27, 2008
Yoshikazu Isoyama, Yokkaichi, JP;
Yoshikazu Isoyama, Yokkaichi, JP;
Autonetworks Technologies, Ltd., Mie, JP;
Sumitomo Wiring Systems, Ltd., Mie, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An on-vehicle communication system has a plurality of buses relay-connected through a relay connection unit, each of the buses having at least one ECU connected thereto. In the vehicle communication system, a basic routing table that specifies a relay point for transmitting from the relay connection unit to the ECU is stored in a ROM and a transmission list report message about message IDs is transmitted. The ECU receives the transmission list report message and sends back a transmission request message about a message ID, which is not included in the transmission list report message but should be received, to the relay connection unit. The transmission request message is received by a table creation unit in the relay connection unit. The table creation unit creates a new additional routing table indicating a correspondence relationship between an ID requested by the transmission request message and a transmission destination and being stored in a RAM.